.twelve .shape {
    background: none;
    border: none;
    perspective: 400px;
    perspective-origin: center;
}

.twelve .shape .container {
    position: relative;
    width: 4em;
    height: 4em;
    background: #2d97db;
    border: 1em solid #fff;
    transform-style: preserve-3d;
    animation: show-container 8s infinite cubic-bezier(.6, -0.44, .37, 1.44);
}

.twelve .item {
    position: absolute;
    background: #1f7bb6;
}

.twelve .item.one {
    top: 15%;
    left: 25%;
    width: 30%;
    height: 6%;
    animation: show-text 8s 0.1s infinite ease-out;
}

.twelve .item.two {
    top: 30%;
    left: 25%;
    width: 20%;
    height: 6%;
    animation: show-text 8s 0.2s infinite ease-out;
}

.twelve .item.three {
    top: 45%;
    left: 25%;
    width: 50%;
    height: 6%;
    animation: show-text 8s 0.3s infinite ease-out;
}

.twelve .item.four {
    top: 65%;
    left: 30%;
    width: 40%;
    height: 20%;
    animation: show-button 8s infinite cubic-bezier(.64, -0.36, .1, 1.43);
}
@keyframes show-container {
    0% {
        opacity: 0;
        transform: rotateX(-90deg);
    }
    10% {
        width: 4em;
        height: 4em;
        transform: none;
        opacity: 1;
    }
    15%, 90% {
        width: 12em;
        height: 12em;
        transform: translate(-4em, -4em);
        opacity: 1;
    }
    100% {
        width: 4em;
        height: 4em;
        transform: rotateX(-90deg);
        opacity: 0;
    }
}
@keyframes show-text {
    0%, 15% {
        transform: translateY(1em);
        opacity: 0;
    }
    20%, 85% {
        transform: none;
        opacity: 1;
    }
    88%, 100% {
        transform: translateY(-1em);
        opacity: 0;
        animation-timing-function: cubic-bezier(.64,-0.36,.1,1.43);
    }
}
@keyframes show-button {
    0%, 25% {
        opacity: 0;
        transform: scale(0);
    }
    35%, 80% {
        opacity: 1;
        transform: none;
    }
    90%, 100% {
        opacity: 0;
        transform: scale(0)
    }
}